/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.example.plasma;

import android.app.Activity;
import android.os.Bundle;
import android.content.Context;
import android.view.View;
import android.graphics.Bitmap;
import android.graphics.Canvas;

public class Plasma extends Activity {
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(new PlasmaView(this));
	}

	/* load our native library */
	static {
		System.loadLibrary("plasma");
	}
}

class PlasmaView extends View {
	private Bitmap mBitmap;
	private long mStartTime;

	/* implementend by libplasma.so */
	private static native void renderPlasma(Bitmap bitmap, long time_ms);

	public PlasmaView(Context context) {
		super(context);

		final int W = 200;
		final int H = 200;

		mBitmap = Bitmap.createBitmap(W, H, Bitmap.Config.RGB_565);
		mStartTime = System.currentTimeMillis();
	}

	@Override
	protected void onDraw(Canvas canvas) {
		// canvas.drawColor(0xFFCCCCCC);
		renderPlasma(mBitmap, System.currentTimeMillis() - mStartTime);
		canvas.drawBitmap(mBitmap, 0, 0, null);
		// force a redraw, with a different time-based pattern.
		invalidate();
	}
}
